The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1981
Filed:
Nov. 13, 1979
Applicant:
Inventors:
Thomas A Magers, South Bend, IN (US);
David L Tabb, Elkhart, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ;
U.S. Cl.
CPC ...
435 14 ; 2323 / ; 252408 ; 422 56 ; 435 25 ; 435 28 ;
Abstract
An improved composition and test device for determining the presence of a constituent in a test sample are disclosed. The composition, which contains a benzidine-type indicator is improved by additionally comprising an amine oxide compound. The device comprises a carrier matrix incorporated with the improved composition. The method comprises contacting the test sample with the composition and observing any detectable response.